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SIGNIFICANT ACCOUNTING POLICIES (Details 2) (USD $)
9 Months Ended
Sep. 30, 2012
Dec. 31, 2011
Restricted cash    
Restricted cash and cash equivalents $ 29,425,000 $ 12,451,000
Revenue Recognition    
Revenue related to marketing-related services 1,300,000  
Cash in escrow for loan loss obligations
   
Restricted cash    
Restricted cash and cash equivalents 20,127,000  
Escrow pursuant to the asset purchase agreement | LendingTree Loans
   
Restricted cash    
Restricted cash and cash equivalents 17,100,000  
Escrow held by an investor that purchased loans | LendingTree Loans
   
Restricted cash    
Restricted cash and cash equivalents 3,000,000  
Cash in escrow for surety bonds
   
Restricted cash    
Restricted cash and cash equivalents 6,501,000 6,500,000
Cash in escrow for corporate purchasing card program
   
Restricted cash    
Restricted cash and cash equivalents 800,000 800,000
Minimum required balances for warehouse lines of credit
   
Restricted cash    
Restricted cash and cash equivalents   4,250,000
Other
   
Restricted cash    
Restricted cash and cash equivalents $ 1,997,000 $ 901,000